#include <iostream>
#include <string>
#include <cstring>
#include <cstdlib>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "Comm.hpp"
using namespace std;
void Usage(const std::string &process)
{
    std::cout << "Usage: " << process << " server_ip server_port" << std::endl;
}

// ./tcp_client serverip serverport
int main(int argc, char *argv[])
{
    if (argc != 3)
    {
        Usage(argv[0]);
        return 1;
    }
    string serverip=argv[1];
    int serverport=stoi(argv[2]);
    int sockfd=socket(AF_INET,SOCK_STREAM,0);
    if(sockfd < 0)
    {
        cerr << "socket error" << endl;
        return 1;
    }
    struct sockaddr_in server;
    memset(&server,0,sizeof(server));
    server.sin_family=AF_INET;
    server.sin_port=htons(serverport);
    inet_pton(AF_INET,serverip.c_str(),&server.sin_addr);
    

    int n=connect(sockfd,CONV(&server),sizeof(server));
    if(n<0){
        cerr<<"connet error "<<endl;
        return 2;

    }

    //收发消息
    while(true){
         string inbuffer;
         cout<<"Please Enter#";
         getline(cin,inbuffer);
         ssize_t n=write(sockfd,inbuffer.c_str(),inbuffer.size());
         if(n>0){
            char buffer[1024];
            ssize_t m=read(sockfd,buffer,sizeof(buffer)-1);
            if(m>0){
                buffer[m]=0;
                cout << "get a echo messsge -> " << buffer << endl;

            }
            else if(m==0||m<0){
               break;
            }
         }  
         else{
            break;
         }

    }
    close(sockfd);
    return 0;
}